Catalan Member of the European Parliament Carles Puigdemont arrives at a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Member of the European Parliament Carles Puigdemont arrives at a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Member of the European Parliament Carles Puigdemont attends a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Member of the European Parliament Carles Puigdemont arrives at a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Member of the European Parliament Carles Puigdemont arrives at a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Member of the European Parliament Carles Puigdemont arrives at a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Member of the European Parliament Carles Puigdemont arrives at a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Members of the European Parliament Carles Puigdemont and Antoni Comin attend a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

Catalan Member of the European Parliament Carles Puigdemont arrives at a MEPs joint committee meeting in Brussels, Belgium September 27, 2021. REUTERS/Yves Herman

MEP Antoni Comin speaks during a protest in support of former Catalan government head Carles Puigdemont, who has been arrested in Sardinia on Thursday, in front of the European Parliament, in Brussels, Belgium September 24, 2021. REUTERS/Yves Herman

MEPs attend a debate during a plenary session at the European Parliament in Strasbourg, France, July 6, 2021. REUTERS/Christian Hartmann/Pool

Executive Director of FCH JU (Fuel Cells and Hydrogen Join Undertaking) Bart Biebuyck, Shell's Downstream Director Huibert Vigeveno, Christian Democratic Union (CDU) leader, Prime Minister of North Rhine-Westphalia and candidate for Chancellor Armin Laschet, Head of German Association of Energy and Water Industries (BDEW) and MEP Jens Geier attend a launch event for a hydrogen electrolysis plant called 'REFHYNE', one of the world's first green hydrogen plants, at Shell's Rhineland refinery in Wesseling near Cologne, Germany, July 2, 2021. REUTERS/Thilo Schmuelgen

Traditional Unionist Voice leader Jim Allister, former Brexit party MEP Ben Habib, Baroness Kate Hoey and Colin Dougan from Nelson Singleton Solicitors leave after the Northern Ireland High Court rejected the challenge to the lawfulness of the Brexit protocol, in Belfast, Northern Ireland, June 30, 2021. REUTERS/Jason Cairnduff

Traditional Unionist Voice leader Jim Allister, former Brexit party MEP Ben Habib, Baroness Kate Hoey and Colin Dougan from Nelson Singleton Solicitors speak to the media after the Northern Ireland High Court rejected the challenge to the lawfulness of the Brexit protocol, in Belfast, Northern Ireland, June 30, 2021. REUTERS/Jason Cairnduff

Traditional Unionist Voice leader Jim Allister, former Brexit party MEP Ben Habib, Baroness Kate Hoey and Colin Dougan from Nelson Singleton Solicitors speak to the media after the Northern Ireland High Court rejected the challenge to the lawfulness of the Brexit protocol, in Belfast, Northern Ireland, June 30, 2021. REUTERS/Jason Cairnduff

Traditional Unionist Voice leader Jim Allister, Baroness Kate Hoey and former Brexit party MEP Ben Habib arrive at the Royal Courts of Justice ahead of the judicial review judgment for the Northern Ireland Brexit protocol, in Belfast, Northern Ireland, June 30, 2021. REUTERS/Jason Cairnduff

Traditional Unionist Voice leader Jim Allister, Baroness Kate Hoey and former Brexit party MEP Ben Habib arrive at the Royal Courts of Justice ahead of the judicial review judgment for the Northern Ireland Brexit protocol, in Belfast, Northern Ireland, June 30, 2021. REUTERS/Jason Cairnduff

Traditional Unionist Voice leader Jim Allister, Baroness Kate Hoey and former Brexit party MEP Ben Habib arrive at the Royal Courts of Justice ahead of the judicial review judgment for the Northern Ireland Brexit protocol, in Belfast, Northern Ireland, June 30, 2021. REUTERS/Jason Cairnduff

Spanish MEP Juan Fernando Lopez Aguilar delivers his speech at the European Parliament in Strasbourg, France June 8, 2021. Jean-Francois Badias/Pool via REUTERS

Catalan MEP Carles Puigdemont attends a joint news conference with Catalan MEPs Antoni Comin and Clara Ponsati regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati leave after a joint news conference regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEP Clara Ponsati speaks during a joint news conference with Catalan MEPs Carles Puigdemont and Antoni Comin regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont puts on his protective face mask during a joint news conference with Catalan MEPs Antoni Comin and Clara Ponsati regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEP Antoni Comin speaks during a joint news conference with Catalan MEPs Carles Puigdemont and Clara Ponsati regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEP Antoni Comin speaks during a joint news conference with Catalan MEPs Carles Puigdemont and Clara Ponsati regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont looks on during a joint news conference with Catalan MEPs Antoni Comin and Clara Ponsati regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont gestures during a joint news conference with Catalan MEPs Antoni Comin and Clara Ponsati regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati hold a joint news conference regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin and Carles Puigdemont hold a joint news conference regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati hold a joint news conference regarding their immunity at the European Parliament, in Brussels, Belgium June 3, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati join a protest after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati join a protest after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Carles Puigdemont and Clara Ponsati join a protest after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati join a protest after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati join a protest after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont joins a protest after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

A demonstrator joins a protest after the European Parliament voted to waive the immunity of Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati join a protest after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont holds a news conference after the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Clara Ponsati speaks at a news conference after the European Parliament voted to waive her immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont leaves after a news conference as the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont leaves after a news conference as the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati end a joint news conference after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont speaks at a news conference after the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati hold a joint news conference after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati hold a joint news conference after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Antoni Comin speaks at a news conference after the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont speaks at a news conference after the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati hold a joint news conference after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont speaks at a news conference after the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Carles Puigdemont and Clara Ponsati hold a joint news conference after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Clara Ponsati speaks at a news conference after the European Parliament voted to waive her immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Antoni Comin speaks at a news conference after the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEP Carles Puigdemont arrives to hold a news conference after the European Parliament voted to waive his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin and Carles Puigdemont arrive to hold a joint news conference after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Catalan MEPs Antoni Comin, Carles Puigdemont and Clara Ponsati arrive to hold a joint news conference after the European Parliament voted to waive their immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Former member of the Catalan government and MEP Carles Puigdemont leaves a TV studio as he faces an EU parliamentary vote on a waiver of his immunity in Brussels, Belgium March 9, 2021. The screen reads: "Europe's fault?" REUTERS/Yves Herman

Former member of the Catalan government and MEP Carles Puigdemont adjusts his protective mask after an interview as he faces an EU parliamentary vote on a waiver of his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

Former member of the Catalan government and MEP Carles Puigdemont takes a selfie after an interview as he faces an EU parliamentary vote on a waiver of his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman

A view of former member of the Catalan government and MEP Carles Puigdemont's badge as he leaves a TV studio facing an EU parliamentary vote on a waiver of his immunity in Brussels, Belgium March 9, 2021. REUTERS/Yves Herman